Ludwig

No longer having to impersonate his twin brother and following his successful closure rate for the major investigation team, puzzle setter John ‘Ludwig' Taylor returns under his new job title of crime scene consultant.

After retrieving the files from storage, John is determined to find the incriminating information that led to Sinclair's death and James's disappearance.

As the Cambridge Police Authority undergoes investigation in light of the Holly Pinder scandal, an unusual double confession at the theatre sees John take centre stage, where he must prove who didn't commit the crime. The case takes a turn when John meets a key witness who appears to recognise him – and not because he's Ludwig. Is there more to this witness than meets the eye?

When a ceilidh is cut short by an unwelcome guest, John is left in a spin. Ironically, a murder witnessed by an entire wedding party proves to be quite the puzzle. While John feels overwhelmed by the variables, the crime stirs up difficult emotions for Russell.

Chief Constable Ziegler's abrupt holiday leave arouses suspicion from the Taylors. Now with too many strange pieces on their board, nothing seems like a coincidence. In a bid to get answers from the prime suspect embedded in their investigation, Lucy goes on a stakeout.

Disobeying station rules, John pops into the Cambridge Police Authority, hoping to find intel for Lucy's upcoming assignment. But keeping a low profile proves difficult for our puzzle genius when he finds himself unable to resist consulting on the murder of an influencer. Navigating his way through Cambridge's labyrinth, Ludwig must map out how the killer was able to dodge being seen on camera in an area saturated with CCTV.

Meanwhile, Lucy and Henry attempt to connect the dots in their investigation and reach a breakthrough revelation on their prime suspect. But as the pieces fall into place, they can't help but wonder whether their opponent is already one step ahead of them.

It's Lucy's big day, and tensions are high. Ever resourceful, Lucy undergoes some last-minute undercover work to prepare for what's to come. She needs her brother-in-law's support, but John finds himself snookered by the latest murder. For once, a crime scene is the last place John wants to be. As the case twists from a whodunit to a howdunit, and an unexpected phone call sends shockwaves, John grows increasingly frustrated at how everyone seems to be playing games.

Reeling from their recent discovery, John and Lucy struggle to see how this new piece of information fits into what they already know. When a sushi bar turns into a crime scene, an unlikely witness helps John in both of his investigations. Desperate for answers to questions of his own, Russell takes matters into his own hands. But when a cryptic thumb drive is left behind by the witness and decoded by John, Russell is crushed by what he learns. Are some truths better left hidden?

A shocking death that strikes close to home leaves John shaken when all avenues point to Joanne Kemper. The clock is ticking, but the Taylors are no closer to understanding how it all fits together. With everything laid out on the table, John and Lucy must place their trust in those around them as the investigation comes to a head. Has Kemper finally made a wrong move? Will Ludwig ensure that justice is served before another life is lost?